OPERATION
To
reduce the
risk of serious bodily injury
, fluid injec
-
tion, splashing in the eyes or on the skin, or injury
from moving parts, always follow this procedure
whenever you shut off the sprayer, when checking
or
servicing any part of the spray system, when in
-
stalling,
cleaning or changing spray
tips, and when
-
ever
you stop spraying.
1
Engage the gun safety latch.
2T
urn the ON/OFF switch to OFF
.
3
Unplug the power supply cord.
4 Disengage the gun safety latch. Hold a metal
part of the gun firmly to the side of a grounded
metal pail, and trigger the gun to relieve
pressure.
5 Engage
the gun safety latch.
6 Open the pressure drain valve, having a con-
tainer ready to catch the drainage. Leave the
valve
open until you are ready to spray again.
If
you suspect that
the spray tip or hose is complete
-
ly clogged or that pressure has not been fully re-
lieved after following the steps above,
VER Y
SLOWLY
loosen the tip guard retaining
nut or hose
end coupling and relieve pressure gradually , and
then loosen the part completely . Clear the tip or
hose
obstruction.
WARNING
Startup
Always
use this
procedure to help ensure the sprayer is
ready
to operate and that you start it safely
.
1 For
a first time startup
, flush the sprayer
. See page
10.
2 Close
the pressure drain valve.
3 Don’t install the spray tip until the pump is
primed!
4 Put the suction tube into the paint container.
5 Lower
the pressure
setting
by turning the pressure
adjusting
knob all the way counterclockwise.
6 Disengage the gun safety latch.
CAUTION
Do not run the sprayer dry for more than 30 sec-
onds
to avoid damaging the pump packings.
7 To prime the pump , hold a metal part of the gun
firmly against a grounded metal waste container .
See
Fig 5. Squeeze the trigger and hold it open, turn
the ON/OFF switch to ON, and slowly increase the
pressure setting until the sprayer starts. Keep the
gun triggered until all air is forced out of the system
and
the paint flows freely from the gun. Release
the
trigger
and engage the gun safety latch.
NOTE: If the pump is hard to prime, place a container
under the pressure drain valve and open it.
When fluid comes from the valve, close it. Pro-
ceed
as in Steps 6 and 7.
Fig 5
MAINTAIN
FIRM
MET
AL T
O MET
AL
CONTACT
8 Check
all fluid connections for leaks
.
If any leaks
are found, relieve pressure before tightening the
connections.
9 Install the spray tip and tip guard. Relieve pres-
sure. Engage the gun safety latch. Install the spray
tip. If you are using the RAC IV tip guard, refer to
manual
307–848 for installation instructions.
10
Adjust the pressure.
a. Turn
the pressure adjusting
knob clockwise just
until
spray from the gun is completely atomized.
To avoid excessive overspray and fogging, and
to decrease tip wear and extend the life of the
sprayer, always use the lowest possible pres-
sure
needed to get the desired results.
b.
If more coverage is needed, use a larger tip
rather
than increasing the pressure.
c.
Test
the spray pattern. T
o adjust the direction of
the spray pattern: engage the gun safety latch,
loosen the retaining nut, position the tip guard
horizontally for a horizontal pattern or vertically
for a vertical pattern and tighten the retaining
nut.
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